src/cpl_query/_extension/iterable.py

@@ -64,10 +64,10 @@ class Iterable(IterableABC):
     def for_each(self, func: Callable):
         for_each_query(self, func)
 
-    def max(self, func: Callable) -> Union[int, float, complex]:
+    def max(self, func: Callable = None) -> Union[int, float, complex]:
         return max_query(self, func)
 
-    def min(self, func: Callable) -> Union[int, float, complex]:
+    def min(self, func: Callable = None) -> Union[int, float, complex]:
         return min_query(self, func)
 
     def order_by(self, func: Callable) -> OrderedIterableABC:

src/cpl_query/extension/iterable_abc.py

@@ -69,10 +69,10 @@ class IterableABC(ABC, list):
     def for_each(self, func: Callable) -> Union[int, float, complex]: pass
 
     @abstractmethod
-    def max(self, func: Callable) -> Union[int, float, complex]: pass
+    def max(self, func: Callable = None) -> Union[int, float, complex]: pass
 
     @abstractmethod
-    def min(self, func: Callable) -> Union[int, float, complex]: pass
+    def min(self, func: Callable = None) -> Union[int, float, complex]: pass
 
     @abstractmethod
     def order_by(self, func: Callable) -> 'IterableABC': pass

src/cpl_query/tests/query_test.py

@@ -171,10 +171,26 @@ class QueryTest(unittest.TestCase):
         res = self._tests.max(lambda u: u.address.nr)
         self.assertEqual(self._t_user.address.nr, res)
 
+        tests = List(values=list(range(0, 100)))
+        self.assertEqual(99, tests.max())
+
+        def wrong():
+            e_res = List(str, list([str(v) for v in range(0, 100)])).max()
+
+        self.assertRaises(WrongTypeException, wrong)
+
     def test_min(self):
         res = self._tests.min(lambda u: u.address.nr)
         self.assertEqual(1, res)
 
+        tests = List(values=list(range(0, 100)))
+        self.assertEqual(0, tests.min())
+
+        def wrong():
+            e_res = List(str, list([str(v) for v in range(0, 100)])).min()
+
+        self.assertRaises(WrongTypeException, wrong)
+
     def test_order_by(self):
         res = self._tests.order_by(lambda user: user.address.street)
         res2 = self._tests.order_by(lambda user: user.address.nr)